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89000001 = 329888889
BaseRepresentation
bin1010100111000…
…00100001000001
320012110200001100
411103200201001
5140241000001
612455325013
72130326136
oct523404101
9205420040
1089000001
1146269022
1225980769
1315591a2c
14bb6a58d
157c30586
hex54e0841

89000001 has 6 divisors (see below), whose sum is σ = 128555570. Its totient is φ = 59333328.

The previous prime is 88999979. The next prime is 89000027. The reversal of 89000001 is 10000098.

It can be written as a sum of positive squares in only one way, i.e., 75272976 + 13727025 = 8676^2 + 3705^2 .

It is not a de Polignac number, because 89000001 - 210 = 88998977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89000201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4944436 + ... + 4944453.

Almost surely, 289000001 is an apocalyptic number.

It is an amenable number.

89000001 is a deficient number, since it is larger than the sum of its proper divisors (39555569).

89000001 is a wasteful number, since it uses less digits than its factorization.

89000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9888895 (or 9888892 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 89000001 is about 9433.9811850565. The cubic root of 89000001 is about 446.4745112306.

Adding to 89000001 its reverse (10000098), we get a palindrome (99000099).

It can be divided in two parts, 8 and 9000001, that added together give a palindrome (9000009).

The spelling of 89000001 in words is "eighty-nine million, one", and thus it is an aban number and an uban number.

Divisors: 1 3 9 9888889 29666667 89000001